Damping lock for hand-pushed windproof roller shutter

Abstract

The utility model discloses a damping lock for a hand-pushed windproof roller shutter, which comprises a left elastic friction damping lock head, a right elastic friction damping lock head, a linkage mechanism, a reset locking mechanism and a movable handle, and under the action of external force, when the movable handle moves upwards or downwards in a manner of being vertical to a roller shutter bottom rail, the reset locking mechanism can reset when the movable handle moves upwards or downwards in a manner of being vertical to the roller shutter bottom rail. The left elastic friction damping lock head and the right elastic friction damping lock head respectively unlock the roller shutter left side rail and the roller shutter right side rail; and when the external force disappears, the reset locking mechanism drives the movable handle to reset, so that the left elastic friction damping lock head and the right elastic friction damping lock head respectively lock the roller shutter left side rail and the roller shutter right side rail. According to the damping lock for the hand-pushed windproof roller shutter, the structure is innovated, manual unlocking and locking are not needed, when the movable handle on the lower rail of the windproof roller shutter is moved by hand, the lock has an automatic unlocking function, when the lower rail of the windproof roller shutter stops moving, the lock has an automatic locking function, and operation is extremely convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of windproof rolling curtains, in particular to a damping lock for a hand-pushed windproof rolling curtain. Background Art

[0002] The main structural principle of the windproof roller blind is to effectively integrate the fabric and various accessories into a whole. The fabric end of the windproof roller blind is generally connected to the lower rail, and the movement of the lower rail drives the fabric to slide in the side rails on both sides to achieve the effect of opening and closing the curtain, so that the windproof roller blind has wind resistance.

[0003] Currently in the windproof roller shutter market, the slide grooves on both sides of the side rails are generally used to limit the lower rail to achieve a wind-resistant effect. However, the slide grooves on both sides of the side rails have limited limitations on the lower rails. When strong winds come, the strong winds will blow the entire fabric together with the lower rails to float continuously, so the fabric will have wrinkles, and the lower rail will tilt under uneven force. The lower rail will continuously generate noise when it hits the side rails under the action of wind, which will eventually cause damage to the fabric, damage to the lower rail, and damage to the inner wall of the side rail slide groove, thereby affecting the user experience and the normal use of the windproof roller shutter.

[0004] In order to solve the above problems, the existing windproof roller shutter has a lock added to the lower rail, and the lower rail is locked to the left rail and the right rail by the lock. Then the existing lock needs to be opened first, and then the lower rail is moved. After the lower rail is moved to the desired position, the lock is locked again. Because the lock of the existing technology does not have the function of automatic locking and automatic unlocking, it is somewhat inconvenient to operate. Utility Model Content

[0005] The utility model aims to provide a damping lock for a hand-pushed windproof roller blind, which has the function of automatically unlocking when the lower rail of the windproof roller blind is moved, and has the function of automatically locking when the lower rail of the windproof roller blind stops moving.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A damping lock for a hand-pushed windproof roller shutter comprises a left elastic friction damping lock head, a right elastic friction damping lock head, a linkage mechanism, a reset locking mechanism and a movable handle. Under the action of an external force, when the movable handle moves up or down perpendicular to a bottom rail of the roller shutter, the movable handle drives the left elastic friction damping lock head and the right elastic friction damping lock head to slightly retract through the linkage mechanism, so that the left elastic friction damping lock head and the right elastic friction damping lock head respectively unlock the left rail and the right rail of the roller shutter; when the external force disappears, the reset locking mechanism drives the movable handle to reset, and drives the left elastic friction damping lock head and the right elastic friction damping lock head to slightly expand through the linkage mechanism, so that the left elastic friction damping lock head and the right elastic friction damping lock head respectively lock the left rail and the right rail of the roller shutter.

[0008] Furthermore, the reset locking mechanism is installed on the bottom rail of the rolling shutter, and the linkage mechanism is located inside the bottom rail of the rolling shutter.

[0009] Further, the reset locking mechanism includes a left reset box and a right reset box, which are mounted on the roller shutter bottom rail by screws, and the left reset box and the right reset box are respectively provided with a left reset slide post and a right reset slide post, and two left reset springs and two right reset springs are respectively inserted on the left reset slide post and the right reset slide post, and a left elongated slide groove is opened on the right side wall of the left reset box, and a right elongated slide groove is opened on the left side wall of the right reset box; the left and right sides of the movable handle are respectively provided with a left boss and a right boss, and the left boss and the right boss are respectively provided with a left sliding hole and a right sliding hole, the left boss passes through the left elongated slide groove, extends into the left reset box, and is inserted on the left reset slide post through the left sliding hole and is located between the two left reset springs, and the right boss passes through the right elongated slide groove, extends into the right reset box, and is inserted on the right reset slide post through the right sliding hole and is located between the two right reset springs.

[0010] Further, the linkage mechanism includes a left linkage rod, a left sliding seat, a left connecting plate, a right linkage rod, a right sliding seat, a right connecting plate and a transmission member, the left end of the left linkage rod is connected to the left elastic friction damping lock, the right end of the left linkage rod is connected to the left end of the left sliding seat, the right end of the left sliding seat is provided with a left hinge shaft, and the left hinge shaft is hinged to the left hinge hole on the left connecting plate; the right end of the right linkage rod is connected to the right elastic friction damping lock, the left end of the right linkage rod is connected to the right end of the right sliding seat, the left end of the right sliding seat is provided with a right hinge shaft, and the right hinge shaft is hinged to the right hinge hole on the right connecting plate.

[0011] Further, when the left elastic friction damping lock head and the right elastic friction damping lock head respectively lock the left rail and the right rail of the rolling curtain, the left connecting piece, the right connecting piece, the left linkage rod and the right linkage rod are on the same straight line.

[0012] Furthermore, the linkage mechanism also includes a sliding limit seat, which is fixed in the bottom rail of the rolling shutter. A cavity is provided in the sliding limit seat, and a left sliding channel and a right sliding channel are respectively provided in the sliding limit seat and on both sides of the cavity. The left sliding seat and the right sliding seat are respectively located in the left sliding channel and the right sliding channel; the left connecting plate and the right connecting plate are located in the cavity.

[0013] Furthermore, a left limit plate is provided on the left sliding seat near the left end of the left sliding seat, and the left limit plate is located outside the sliding limit seat; a right limit plate is provided on the right sliding seat near the right end of the right sliding seat, and the right limit plate is located outside the sliding limit seat.

[0014] Furthermore, the left elastic friction damping lock head and the right elastic friction damping lock head have the same structure.

[0015] Furthermore, the right elastic friction damping lock head comprises a lock head seat, a main friction block, a locking block, a supporting body, a friction compression upper spring, a friction compression lower spring and a sealing end cover, the sealing end cover is fixed to the right port of the roller shutter bottom rail by screws, the main friction block is fixed to one end of the lock head seat and is integrally formed with the lock head seat, the other end of the lock head seat is connected to the right linkage rod through a connecting head, a slide groove is provided on the lock head seat, the supporting body is installed in the slide groove, the friction compression upper spring and the friction compression lower spring are respectively located in the upper groove and the lower groove on the sealing end cover, One end of the friction compression lower spring presses on the end face in the lower groove on the sealing end cover, and the other end presses on the top pressure plate on one side of the support body, and the top pressure plate extends into the lower groove on the sealing end cover; the locking block is fixed to the support body by screws, and one end of the friction compression upper spring presses on the end face in the upper groove on the sealing end cover, and the other end presses on the bearing plate on one side of the lock seat, and the bearing plate extends into the upper groove on the sealing end cover; a through hole is provided on the sealing end cover, and the lock seat is located in the bottom rail of the rolling shutter, and the main friction block and the locking block extend out of the bottom rail of the rolling shutter through the through hole.

[0016] Furthermore, the sealing end cover is provided with two elastic plates, which extend into the roller shutter bottom rail and contact the front and rear walls of the roller shutter bottom rail respectively. The two elastic plates are used to enhance the connection firmness between the sealing end cover and the roller shutter bottom rail and the accuracy of the installation position.

[0017] Furthermore, a central hinge shaft is provided in the middle of the movable handle, and the central hinge shaft extends into the bottom rail of the rolling shutter and is hinged to the right hinge hole on the left connecting plate and the left hinge hole on the right connecting plate.

[0018] Furthermore, a groove is provided on the movable handle, a vertical plate is provided in the middle of the groove, two tooth rows are provided on both sides of the vertical plate, the two tooth rows are respectively meshed with two special-shaped gears, the two special-shaped gears are respectively installed on the hinge shafts in the groove of the movable handle, and transmission hinge shafts are respectively provided on the end faces of the two special-shaped gears, and the two transmission hinge shafts are respectively hinged to the right hinge hole on the left connecting plate and the left hinge hole on the right connecting plate.

[0019] The beneficial effects of the utility model are:

[0020] The damping lock for the hand-pushed windproof roller shutter in the present application has been innovative in structure and does not require manual unlocking and locking. When the movable handle on the lower rail of the windproof roller shutter is moved by hand, the lock has the function of automatic unlocking. When the lower rail of the windproof roller shutter stops moving, the lock has the function of automatic locking, which is extremely convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described with the aid of the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other accompanying drawings according to the following drawings without creative work:

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the utility model after being installed on a windproof roller blind;

[0024] Figure 3 for Figure 2 A perspective view of the bottom rail of the roller shutter shown;

[0025] Figure 4 for Figure 3 A perspective view of the reset locking mechanism and the movable handle shown;

[0026] Figure 5 for Figure 1 The structural schematic diagram of the movable handle embodiment 1 is shown;

[0027] Figure 6 for Figure 5 A structural schematic diagram of the front side of the movable handle;

[0028] Figure 7 for Figure 1 A schematic diagram of the structure of the linkage mechanism shown;

[0029] Figure 8 for Figure 7 An exploded view of the partial components shown;

[0030] Fig. 9 for Figure 8A schematic diagram of the structure in which each component is installed on a sliding limit seat;

[0031] Fig.10 for Fig. 9 The structural diagram of the back side of the sliding limit seat shown;

[0032] Fig.11 for Figure 1 The structural schematic diagram of the right elastic friction damping lock head is shown;

[0033] Fig.12 for Fig.11 Exploded view shown;

[0034] Fig.13 for Fig.12 The schematic diagram of the structure after the sealing end cover is assembled is shown;

[0035] Fig.14 for Fig.12 A schematic diagram of the structure in which the support body is installed on the lock base;

[0036] Fig.15 for Figure 1 The structural schematic diagram of movable handle embodiment 2 is shown.

[0037] In the figure: 1. left elastic friction damping lock head; 2. right elastic friction damping lock head; 3. linkage mechanism; 4. reset locking mechanism; 5. movable handle; 6. roller shutter bottom rail; 7. roller shutter left rail; 8. roller shutter right rail; 21. lock head seat; 22. main friction block; 23. locking block; 24. support body; 25. friction compression upper spring; 26. friction compression lower spring; 27. sealing end cover; 28. screw; 29. ​​connector; 31. left linkage rod; 32. left sliding seat; 33. left connecting plate; 34. right linkage rod; 35. right sliding seat; 36. right connecting plate; 37. left hinge shaft; 38. right hinge shaft; 39. sliding limit seat; 41. left reset box; 42. right reset box; 51. left boss; 52. right boss; 53. center hinge shaft; 54. groove; 55. vertical plate; 56. tooth row; 57, special-shaped gear; 58, hinge shaft; 59, transmission hinge shaft; 211, slide groove; 212, bearing plate; 241, top pressure plate; 271, lower groove; 272, upper groove; 273, through hole; 274, elastic plate; 2711, end surface in the lower groove; 2721, end surface in the upper groove; 321, left limit plate; 331, left hinge hole; 332, right hinge hole; 351, right limit Position plate; 361, right hinge hole; 362, left hinge hole; 391, cavity; 392, left sliding channel; 393, right sliding channel; 411, left return slide; 412, left return spring; 413, left elongated slide groove; 414, screw; 421, right return slide; 422, right return spring; 423, right elongated slide groove; 424, screw; 511, left sliding hole; 521, right sliding hole. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "forward", "reverse", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] like Figure 1 , Figure 2As shown, a damping lock for a hand-pushed windproof roller shutter comprises a left elastic friction damping lock head 1, a right elastic friction damping lock head 2, a linkage mechanism 3, a reset locking mechanism 4 and a movable handle 5. Under the action of an external force, when the movable handle 5 moves up or down perpendicular to the roller shutter bottom rail 6, the movable handle 5 drives the left elastic friction damping lock head 1 and the right elastic friction damping lock head 2 to slightly retract through the linkage mechanism 3, so that the left elastic friction damping lock head 1 and the right elastic friction damping lock head 2 respectively unlock the left rail 7 and the right rail 8 of the roller shutter; when the external force disappears, the reset locking mechanism 4 drives the movable handle 5 to reset, and drives the left elastic friction damping lock head 1 and the right elastic friction damping lock head 2 to slightly expand through the linkage mechanism 3, so that the left elastic friction damping lock head 1 and the right elastic friction damping lock head 2 respectively lock the left rail 7 and the right rail 8 of the roller shutter.

[0041] The present invention can automatically unlock the movable handle 5 by pushing it upward or pulling it downward. Once the movable handle 5 is not pushed, the movable handle 5 will automatically reset under the action of the reset locking mechanism 4. The reset point is the position where the damping lock is locked. When the position other than the movable handle is pushed, the bottom rail is in a locked state.

[0042] like Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the reset locking mechanism 4 is installed on the roller shutter bottom rail 6, and the linkage mechanism 2 is located inside the roller shutter bottom rail 6. Specifically, the reset locking mechanism 4 includes a left reset box 41 and a right reset box 42, which are respectively installed on the roller shutter bottom rail 6 by screws 414 and screws 424, and a left reset slide post 411 and a right reset slide post 421 are respectively provided inside the left reset box 41 and the right reset box 42, and two left reset springs 412 and two right reset springs 422 are respectively inserted on the left reset slide post 411 and the right reset slide post 421, and a left long slide groove 413 is opened on the right side wall of the left reset box 41, and a right long slide groove 413 is opened on the left side wall of the right reset box 42. Slot 423; a left boss 51 and a right boss 52 are respectively provided on the left and right sides of the movable handle 5, and a left sliding hole 511 and a right sliding hole 521 are respectively provided on the left boss 51 and the right boss 52, the left boss 51 passes through the left elongated sliding groove 413 and extends into the left reset box 41, and is inserted through the left sliding hole 511 on the left reset slide column 411 and is located between the two left reset springs 412, the right boss 52 passes through the right elongated sliding groove 423 and extends into the right reset box 42, and is inserted through the right sliding hole 521 on the right reset slide column 421 and is located between the two right reset springs 422.

[0043] like Figure 7 , Figure 8 , Fig. 9 , Fig.10As shown, the linkage mechanism 3 includes a left linkage rod 31, a left sliding seat 32, a left connecting piece 33, a right linkage rod 34, a right sliding seat 35 and a right connecting piece 36. The left end of the left linkage rod 31 is connected to the left elastic friction damping lock head 1, and the right end of the left linkage rod 31 is connected to the left end of the left sliding seat 32. The right end of the left sliding seat 32 is provided with a left hinge shaft 37, and the left hinge shaft 37 is hinged to the left hinge hole 331 on the left connecting piece 33; The right end is connected to the right elastic friction damping lock head 2, the left end of the right linkage rod 34 is connected to the right end of the right sliding seat 35, the left end of the right sliding seat 35 is provided with a right hinge shaft 38, and the right hinge shaft 38 is hinged with the right hinge hole 361 on the right connecting piece 36; the middle part of the movable handle 5 is provided with a central hinge shaft 53, and the central hinge shaft 53 extends into the rolling shutter bottom rail 6 and is hinged with the right hinge hole 332 on the left connecting piece 33 and the left hinge hole 362 on the right connecting piece 36. When the left elastic friction damping lock head 1 and the right elastic friction damping lock head 2 lock the left rail 7 and the right rail 8 of the rolling shutter respectively, the left connecting piece 33, the right connecting piece 36, the left linkage rod 31 and the right linkage rod 34 are on the same straight line.

[0044] The linkage mechanism 3 also includes a sliding limit seat 39, which is fixed in the roller shutter bottom rail 6. A cavity 391 is provided in the sliding limit seat 39. A left sliding channel 392 and a right sliding channel 393 are respectively provided in the sliding limit seat 39 and on both sides of the cavity 391. The left sliding seat 32 and the right sliding seat 35 are respectively located in the left sliding channel 392 and the right sliding channel 393; the left connecting plate 33 and the right connecting plate 36 are located in the cavity 391.

[0045] A left limit plate 321 is provided on the left sliding seat 32 near the left end of the left sliding seat 32, and the left limit plate 321 is located outside the sliding limit seat 39; a right limit plate 351 is provided on the right sliding seat 35 near the right end of the right sliding seat 35, and the right limit plate 351 is located outside the sliding limit seat 39.

[0046] The left elastic friction damping lock head 1 and the right elastic friction damping lock head 2 have the same structure.

[0047] In order to make the movable handle 5 more stable in transmitting the left connecting piece 33 and the right connecting piece 36, the movable handle 5 is improved to form a second embodiment of the movable handle 5, such as Fig.15As shown, the movable handle 5 is provided with a groove 54, the middle of the groove 54 is provided with a vertical plate 55, two tooth rows 56 are provided on both sides of the vertical plate 55, the two tooth rows 56 are respectively meshed with two special-shaped gears 57, the two special-shaped gears 57 are respectively installed on the hinge shaft 58 in the groove 54 of the movable handle, and the end faces of the two special-shaped gears 57 are respectively provided with transmission hinge shafts 59, and the two transmission hinge shafts 59 are respectively hinged to the right hinge hole 332 on the left connecting plate 33 and the left hinge hole 362 on the right connecting plate 36.

[0048] like Fig.11 , Fig.12 , Fig.13 , Fig.14 As shown, specifically, the right elastic friction damping lock 2 includes a lock seat 21, a main friction block 22, a locking block 23, a support body 24, a friction compression upper spring 25, a friction compression lower spring 26 and a sealing end cover 27, the sealing end cover 27 is fixed to the right port of the roller shutter bottom rail 6 by a screw 28, the main friction block 22 is fixed to one end of the lock seat 21 and is integrally formed with the lock seat 21, the other end of the lock seat 21 is connected to the right linkage rod 34 through a connector 29, a slide groove 211 is provided on the lock seat 21, the support body 24 is installed in the slide groove 211, the friction compression upper spring 25, the friction compression lower spring 26 are respectively located in the upper groove 272 and the lower groove 271 on the sealing end cover 27, and the friction compression One end of the compression lower spring 26 presses on the end surface 2711 in the lower groove on the sealing end cover 27, and the other end presses on the top pressure plate 241 on one side of the support body 24, and the top pressure plate 241 extends into the lower groove 271 on the sealing end cover 27, and the locking block 23 is fixed to the support body 24 by a screw 231, and one end of the friction compression upper spring 25 presses on the end surface 2721 in the upper groove on the sealing end cover 27, and the other end presses on the bearing plate 212 on one side of the lock seat 21, and the bearing plate 212 extends into the upper groove 272 on the sealing end cover 27; a through hole 273 is provided on the sealing end cover 27, and the lock seat 21 is located in the roller shutter bottom rail 6, and the main friction block 22 and the locking block 23 extend out of the roller shutter bottom rail 6 through the through hole 273. The main friction block and the locking block which move independently can lock the bottom rail at any position under the action of the locking compression spring and cannot be easily moved.

[0049] The sealing end cover 27 is provided with two elastic plates 274, which extend into the roller shutter bottom rail 6 and respectively contact the front and rear walls of the roller shutter bottom rail 6. The two elastic plates 274 are used to enhance the connection firmness between the sealing end cover 27 and the roller shutter bottom rail 6 and the accuracy of the installation position.

[0050] Working principle: The damping lock used for the hand-pushed windproof roller shutter in this application has been innovative in structure and does not require manual unlocking and locking. When the movable handle on the lower rail of the windproof roller shutter is moved by hand, the lock has the function of automatic unlocking. When the lower rail of the windproof roller shutter stops moving, the lock has the function of automatic locking, which is extremely convenient to operate.

[0051] In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction. Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the utility model.

Claims

1. A damping lock for a hand-pushed windproof roller blind, characterized in that: It comprises a left elastic friction damping lock head, a right elastic friction damping lock head, a linkage mechanism, a reset locking mechanism and a movable handle. Under the action of external force, when the movable handle moves up or down perpendicular to the bottom rail of the rolling shutter, the movable handle drives the left elastic friction damping lock head and the right elastic friction damping lock head to slightly retract through the linkage mechanism, so that the left elastic friction damping lock head and the right elastic friction damping lock head respectively unlock the left rail and the right rail of the rolling shutter; when the external force disappears, the reset locking mechanism drives the movable handle to reset, and drives the left elastic friction damping lock head and the right elastic friction damping lock head to slightly expand through the linkage mechanism, so that the left elastic friction damping lock head and the right elastic friction damping lock head respectively lock the left rail and the right rail of the rolling shutter.

2. The damping lock for the hand-pushed windproof roller blind according to claim 1 is characterized in that: The reset locking mechanism is installed on the bottom rail of the rolling shutter, and the linkage mechanism is located inside the bottom rail of the rolling shutter.

3. The damping lock for the hand-pushed windproof roller blind according to claim 2 is characterized in that: The reset locking mechanism comprises a left reset box and a right reset box, the left reset box and the right reset box are mounted on the rolling shutter bottom rail by screws, the left reset box and the right reset box are respectively provided with a left reset slide post and a right reset slide post, two left reset springs and two right reset springs are respectively inserted on the left reset slide post and the right reset slide post, a left elongated slide slot is opened on the right side wall of the left reset box, and a right elongated slide slot is opened on the left side wall of the right reset box; the left and right sides of the movable handle are respectively provided with a left boss and a right boss, the left boss and the right boss are respectively provided with a left sliding hole and a right sliding hole, the left boss passes through the left elongated slide slot, extends into the left reset box, and is inserted through the left sliding hole on the left reset slide post and is located between the two left reset springs, the right boss passes through the right elongated slide slot, extends into the right reset box, and is inserted through the right sliding hole on the right reset slide post and is located between the two right reset springs.

4. The damping lock for the hand-pushed windproof roller blind according to claim 1, characterized in that: The linkage mechanism includes a left linkage rod, a left sliding seat, a left connecting plate, a right linkage rod, a right sliding seat and a right connecting plate. The left end of the left linkage rod is connected to the left elastic friction damping lock, the right end of the left linkage rod is connected to the left end of the left sliding seat, the right end of the left sliding seat is provided with a left hinge shaft, and the left hinge shaft is hinged to the left hinge hole on the left connecting plate; the right end of the right linkage rod is connected to the right elastic friction damping lock, the left end of the right linkage rod is connected to the right end of the right sliding seat, the left end of the right sliding seat is provided with a right hinge shaft, and the right hinge shaft is hinged to the right hinge hole on the right connecting plate.

5. The damping lock for the hand-pushed windproof roller blind according to claim 4 is characterized in that: When the left elastic friction damping lock head and the right elastic friction damping lock head respectively lock the left rail and the right rail of the rolling curtain, the left connecting piece, the right connecting piece, the left linkage rod and the right linkage rod are on the same straight line.

6. The damping lock for the hand-pushed windproof roller blind according to claim 5, characterized in that: The linkage mechanism also includes a sliding limit seat, which is fixed in the bottom rail of the rolling shutter. A cavity is provided in the sliding limit seat. A left sliding channel and a right sliding channel are respectively provided in the sliding limit seat and on both sides of the cavity. The left sliding seat and the right sliding seat are respectively located in the left sliding channel and the right sliding channel; the left connecting plate and the right connecting plate are located in the cavity.

7. The damping lock for the hand-pushed windproof roller blind according to claim 6, characterized in that: A left limit plate is provided on the left sliding seat near the left end of the left sliding seat, and the left limit plate is located outside the sliding limit seat; a right limit plate is provided on the right sliding seat near the right end of the right sliding seat, and the right limit plate is located outside the sliding limit seat.

8. The damping lock for the hand-pushed windproof roller blind according to claim 1, characterized in that: The left elastic friction damping lock head and the right elastic friction damping lock head have the same structure.

9. The damping lock for the hand-pushed windproof roller blind according to claim 8, characterized in that: The right elastic friction damping lock head comprises a lock head seat, a main friction block, a locking block, a supporting body, a friction compression upper spring, a friction compression lower spring and a sealing end cover, wherein the sealing end cover is fixed to the right port of the roller shutter bottom rail by screws, the main friction block is fixed to one end of the lock head seat and is integrally formed with the lock head seat, the other end of the lock head seat is connected to the right linkage rod through a connecting head, a slide groove is provided on the lock head seat, the supporting body is installed in the slide groove, the friction compression upper spring and the friction compression lower spring are respectively located in the upper groove and the lower groove on the sealing end cover, and the friction One end of the friction compression lower spring presses on the end face in the lower groove on the sealing end cover, and the other end presses on the top pressure plate on one side of the support body, and the top pressure plate extends into the lower groove on the sealing end cover, and the locking block is fixed to the support body by screws, and one end of the friction compression upper spring presses on the end face in the upper groove on the sealing end cover, and the other end presses on the bearing plate on one side of the lock seat, and the bearing plate extends into the upper groove on the sealing end cover; a through hole is provided on the sealing end cover, and the lock seat is located in the bottom rail of the rolling shutter, and the main friction block and the locking block extend out of the bottom rail of the rolling shutter through the through hole.

10. The damping lock for the hand-pushed windproof roller blind according to claim 9, characterized in that: The sealing end cover is provided with two elastic plates, and the two elastic plates extend into the roller shutter bottom rail and contact the front and rear wall surfaces in the roller shutter bottom rail respectively.

11. The damping lock for the hand-pushed windproof roller blind according to claim 4, characterized in that: A central hinge shaft is arranged in the middle of the movable handle, and the central hinge shaft extends into the bottom rail of the rolling curtain and is hinged to the right hinge hole on the left connecting piece and the left hinge hole on the right connecting piece.

12. The damping lock for the hand-pushed windproof roller blind according to claim 4, characterized in that: The movable handle is provided with a groove, and a vertical plate is provided in the middle of the groove. Two tooth rows are provided on both sides of the vertical plate. The two tooth rows are respectively meshed with two special-shaped gears. The two special-shaped gears are respectively installed on the hinge shafts in the groove of the movable handle. Transmission hinge shafts are respectively provided on the end faces of the two special-shaped gears. The two transmission hinge shafts are respectively hinged to the right hinge hole on the left connecting plate and the left hinge hole on the right connecting plate.

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